Adding a phone field enables SMS-based verification, improves contactability, and strengthens the signer identity record, supporting secure transactions and traceable communication during the signing lifecycle.
An HR manager uses affix phone forms to collect validated contact numbers for onboarding and benefits enrollment. They configure field validation, ensure data retention aligns with company policy, and review audit logs to confirm receipt and verification of employee consent.
A healthcare administrator attaches phone fields to intake and consent forms to enable SMS appointment reminders and verification codes. They prioritize HIPAA-compliant handling, create role-based access for records, and coordinate secure messaging with patient communication practices.
Organizations across sectors add phone fields to improve signer verification, appointment logistics, and automated notifications.
These users rely on phone fields to reduce manual follow-up and to create a verifiable communication record linked to signed documents.
A purpose-built input that captures country code and local number, supports formatting, and can be required or optional depending on the document workflow.
One-time passcodes can be sent to the collected number to confirm possession of the phone as an authentication factor before allowing signature completion.
Built-in validation checks prevent common entry errors, support international formats, and reduce the risk of invalid or incomplete contact data.
Conditional display and required status let administrators show phone fields only when relevant to the signer or document type, simplifying the user experience.
| Setting Name | Configuration |
|---|---|
| Phone Field Requirement | Required / Optional |
| OTP Delivery Method | SMS only |
| Reminder Frequency | 48 hours |
| Retention Period | 7 years |
| Audit Detail Level | Full event logs |
Affix phone form features are generally available across modern desktop browsers and native mobile apps, with parity for input validation and SMS workflows.
Ensure your environment allows outbound SMS from the eSignature provider, and verify that mobile push or SMS delivery is permitted in target countries to avoid message blocking or inconsistent user experiences.
Agents add a phone field to purchase agreements to collect contact numbers for closing confirmations.
Resulting in faster, documented closings and fewer scheduling errors.
Clinics embed phone fields in intake forms to enable appointment reminders and consent confirmation via SMS.
Leading to improved attendance, documented consent trails, and simplified administrative follow-up.
| Vendor and Feature Comparison | signNow (Recommended) | DocuSign | Adobe Sign |
|---|---|---|---|
| SMS OTP availability | |||
| Built-in phone field | |||
| HIPAA support options | Configurable | Business Associate | Enterprise |
| API phone verification |
| Vendor Plans and Pricing | signNow (Recommended) | DocuSign | Adobe Sign | Dropbox Sign | PandaDoc |
|---|---|---|---|---|---|
| Starting price per user | From $8 per user/month | From $10 per user/month | From $9.99 per user/month | From $12 per user/month | From $19 per user/month |
| SMS authentication included | Included in business plans | Available via add-on | Included in select plans | Add-on available | Included in enterprise |
| Monthly envelope limit | Unlimited documents typical | Varies by plan | Varies by plan | Limited for lower tiers | Tiered limits |
| Enterprise support level | Standard and enterprise support | Enterprise SLA options | Enterprise support | Enterprise available | Dedicated support |
| Free trial availability | Free trial offered | Free trial offered | Free trial offered | Free trial offered | Free trial offered |
Affix phone form feature gets easily available when you make use of airSlate SignNow's complete eSignature platform. Use this solution for your business irrespective of the sector you’re doing work in. The set of features presented by airSlate SignNow perfectly suits for people who attempt to make their enterprise strategies more productive and streamline their workflow.
Be assured that your contracts will always be organized properly, filled out by the appropriate parties and signed digitally using the digital signature that complies with the ESIGN Act and also other governmental requirements. Integrate fillable fields to make any document interactive, collect signatures from many persons and apply receiver authentication to make sure that the document was received by the appropriate individual. All this you are able to do when working either from the desktop computer or from the mobile gadget to save lots of time and close essential deals on-the-go.
